公开(公告)号：US09343078B2

公开(公告)日：2016-05-17

申请号：US13345990

申请日：2012-01-09

Applicant: Meoung-Jin Lim ,  Sanghyun Chi

Inventor： Meoung-Jin Lim ,  Sanghyun Chi

IPC: H04B3/20 ,  G10L21/0208

CPC classification number: G10L21/0208 ,  G10L2021/02082

Abstract: An acoustic processing apparatus is provided. The apparatus includes a pre-processing component, a filter and a first signal processing component. The pre-processing component compensates a non-linearity of a reference signal to generate an input signal. The filter coupled to the pre-processing component, the filter executes filtering on the input signal to generate an output signal. The first signal processing component, coupled to the pre-processing component, the reference signal obtains a gain from the first signal processing component to generate a first signal, and the first signal processing component passes the gain to the pre-processing component.

Abstract translation: 提供一种声学处理装置。 该装置包括预处理组件，滤波器和第一信号处理组件。 预处理组件补偿参考信号的非线性以产生输入信号。 滤波器耦合到预处理组件，滤波器对输入信号执行滤波以产生输出信号。 耦合到预处理组件的第一信号处理组件，参考信号从第一信号处理组件获得增益以产生第一信号，并且第一信号处理组件将增益传递给预处理组件。

公开(公告)号：US07283012B2

公开(公告)日：2007-10-16

申请号：US11107686

申请日：2005-04-15

Applicant: Meoung-Jin Lim

Inventor： Meoung-Jin Lim

IPC: H03K7/06

CPC classification number: H03K7/08 ,  G06F1/022 ,  H03F3/217 ,  H03F2200/345 ,  H03M7/3024 ,  H03M7/3031

Abstract: A tri-state pulse density modulator includes a first switch device coupled to a high voltage, and a second switch device coupled to a low voltage. An adder receives a pulse density modulation (PDM) input signal and a latched input signal to generate an output sum signal and a carry signal. A latch module coupled with the adder latches the output sum signal with a clock signal to generate the latched input signal. A control circuit module responsive to the carry signal for selectively turns off the first and second switch devices to generate the PDM output signal at a tri-state voltage between the first and second voltages, or turns on the first or second switch device to generate the PDM output signal at the first or second voltage, respectively. Thus, the PDM output signal only switches between the tri-state voltage and either the first voltage or the second voltage.

Abstract translation: 三态脉冲密度调制器包括耦合到高电压的第一开关器件和耦合到低电压的第二开关器件。 加法器接收脉冲密​​度调制（PDM）输入信号和锁存的输入信号，以产生输出和信号和进位信号。 与加法器耦合的锁存模块将输出和信号与时钟信号锁存以产生锁存的输入信号。 响应于进位信号的控制电路模块选择性地关闭第一和第二开关装置，以在第一和第二电压之间的三态电压下产生PDM输出信号，或者打开第一或第二开关装置以产生 PDM输出信号分别为第一或第二电压。 因此，PDM输出信号仅在三态电压和第一电压或第二电压之间切换。

公开(公告)号：US20140093066A1

公开(公告)日：2014-04-03

申请号：US13632163

申请日：2012-10-01

Applicant: Sanghyun Chi ,  Meoung-Jin Lim

Inventor： Sanghyun Chi ,  Meoung-Jin Lim

IPC: H04M9/08

CPC classification number: H04M9/082 ,  H04M3/002

Abstract: A method for detecting a double-talk condition and an echo cancellation system using the same are introduced herein. According to an exemplary embodiment, the method may be adapted to an double-talk detector of an echo cancellation system and includes the following steps: obtaining an input signal with a first power; computing a second power, wherein the second power is a power combination of at least one estimated signal; determining whether the double-talk condition occurs according to a relationship between the first power and the second power, when the first power is larger than the second power, the double-talk condition occurs.

Abstract translation: 这里介绍了一种用于检测双方通话状况的方法和使用该双向通话状态的回声消除系统。 根据示例性实施例，该方法可以适用于回声消除系统的双向通话检测器，并且包括以下步骤：获得具有第一功率的输入信号; 计算第二功率，其中所述第二功率是至少一个估计信号的功率组合; 当所述第一功率大于所述第二功率时，根据所述第一功率与所述第二功率之间的关系确定所述双方通话状况是否发生，所述双方通话状况发生。

公开(公告)号：US20060233234A1

公开(公告)日：2006-10-19

申请号：US11107686

申请日：2005-04-15

Applicant: Meoung-Jin Lim

Inventor： Meoung-Jin Lim

IPC: H03K9/04

CPC classification number: H03K7/08 ,  G06F1/022 ,  H03F3/217 ,  H03F2200/345 ,  H03M7/3024 ,  H03M7/3031

Abstract: A tri-state pulse density modulator includes a first switch device coupled to a high voltage, and a second switch device coupled to a low voltage. An adder receives a pulse density modulation (PDM) input signal and a latched input signal to generate an output sum signal and a carry signal. A latch module coupled with the adder latches the output sum signal with a clock signal to generate the latched input signal. A control circuit module responsive to the carry signal for selectively turns off the first and second switch devices to generate the PDM output signal at a tri-state voltage between the first and second voltages, or turns on the first or second switch device to generate the PDM output signal at the first or second voltage, respectively. Thus, the PDM output signal only switches between the tri-state voltage and either the first voltage or the second voltage.

Abstract translation: 三态脉冲密度调制器包括耦合到高电压的第一开关器件和耦合到低电压的第二开关器件。 加法器接收脉冲密​​度调制（PDM）输入信号和锁存的输入信号，以产生输出和信号和进位信号。 与加法器耦合的锁存模块将输出和信号与时钟信号锁存以产生锁存的输入信号。 响应于进位信号的控制电路模块选择性地关闭第一和第二开关装置，以在第一和第二电压之间的三态电压下产生PDM输出信号，或者打开第一或第二开关装置以产生 PDM输出信号分别为第一或第二电压。 因此，PDM输出信号仅在三态电压和第一电压或第二电压之间切换。

公开(公告)号：US20060128448A1

公开(公告)日：2006-06-15

申请号：US11013606

申请日：2004-12-15

Applicant: Meoung-Jin Lim

Inventor： Meoung-Jin Lim

IPC: H04M1/00

CPC classification number: H04M1/03 ,  H04M1/0214 ,  H04M1/0245 ,  H04M1/6016 ,  H04M1/605

Abstract: A mobile phone having an easy-receive feature for an incoming call includes a body and a receiver coupled to the body and configured to convey voice communication to a user. A microphone is coupled to the body and is configured to convey voice communication from the user. The body has an open position and a closed position. A loudspeaker is coupled to the body. A means for activating the easy-receive feature is coupled to the body and upon activation the mobile phone is configured to answer the incoming call by routing voice communication to the loudspeaker if the body is in the closed position. Otherwise the mobile phone is configured to route voice communication to the receiver if the body is in the open position.

Abstract translation: 具有用于来电的易于接收功能的移动电话包括耦合到主体并被配置为向用户传达语音通信的主体和接收器。 麦克风耦合到主体并被配置为从用户传送语音通信。 身体有一个开放的位置和一个关闭的位置。 扬声器耦合到身体。 用于激活易接收特征的装置耦合到身体，并且在激活时，移动电话被配置为通过将语音通信路由到扬声器来应答呼入，如果身体处于关闭位置。 否则，如果身体处于打开位置，则移动电话被配置为将语音通信路由到接收机。

公开(公告)号：US08954322B2

公开(公告)日：2015-02-10

申请号：US13557230

申请日：2012-07-25

Applicant: Meoung-Jin Lim ,  Sanghyun Chi

Inventor： Meoung-Jin Lim ,  Sanghyun Chi

IPC: G10L19/00

CPC classification number: H03G7/002 ,  H03G7/008 ,  H04R1/1091 ,  H04R3/007 ,  H04R2420/07

Abstract: An acoustic shock protection device includes a prediction gain estimator and an audio compressor. The prediction gain estimator is configured to analyze a plurality of linear prediction coefficients of an audio signal and determine a category of the audio signal. The audio compressor is coupled to the prediction gain estimator, and the audio compressor is configured to adjust a signal level of the audio signal according to the category of the audio signal.

Abstract translation: 声学防震装置包括预测增益估计器和音频压缩器。 预测增益估计器被配置为分析音频信号的多个线性预测系数并确定音频信号的类别。 音频压缩器耦合到预测增益估计器，并且音频压缩器被配置为根据音频信号的类别来调整音频信号的信号电平。

公开(公告)号：US08934622B2

公开(公告)日：2015-01-13

申请号：US13632163

申请日：2012-10-01

Applicant: Sanghyun Chi ,  Meoung-Jin Lim

Inventor： Sanghyun Chi ,  Meoung-Jin Lim

IPC: H04M9/08

CPC classification number: H04M9/082 ,  H04M3/002

Abstract: A method for detecting a double-talk condition and an echo cancellation system using the same are introduced herein. According to an exemplary embodiment, the method may be adapted to an double-talk detector of an echo cancellation system and includes the following steps: obtaining an input signal with a first power; computing a second power, wherein the second power is a power combination of at least one estimated signal; determining whether the double-talk condition occurs according to a relationship between the first power and the second power, when the first power is larger than the second power, the double-talk condition occurs.

Abstract translation: 这里介绍了一种用于检测双方通话状况的方法和使用该双向通话状态的回声消除系统。 根据示例性实施例，该方法可以适用于回声消除系统的双向通话检测器，并且包括以下步骤：获得具有第一功率的输入信号; 计算第二功率，其中所述第二功率是至少一个估计信号的功率组合; 当所述第一功率大于所述第二功率时，根据所述第一功率与所述第二功率之间的关系确定所述双方通话状况是否发生，所述双方通话状况发生。

公开(公告)号：US20130177162A1

公开(公告)日：2013-07-11

申请号：US13345990

申请日：2012-01-09

Applicant: Meoung-Jin Lim ,  Sanghyun Chi

Inventor： Meoung-Jin Lim ,  Sanghyun Chi

IPC: H04B3/20 ,  H03G3/00

CPC classification number: G10L21/0208 ,  G10L2021/02082

Abstract: An acoustic processing apparatus is provided. The apparatus includes a pre-processing component, a filter and a first signal processing component. The pre-processing component compensates a non-linearity of a reference signal to generate an input signal. The filter coupled to the pre-processing component, the filter executes filtering on the input signal to generate an output signal. The first signal processing component, coupled to the pre-processing component, the reference signal obtains a gain from the first signal processing component to generate a first signal, and the first signal processing component passes the gain to the pre-processing component.

Abstract translation: 提供一种声学处理装置。 该装置包括预处理组件，滤波器和第一信号处理组件。 预处理组件补偿参考信号的非线性以产生输入信号。 滤波器耦合到预处理组件，滤波器对输入信号执行滤波以产生输出信号。 耦合到预处理组件的第一信号处理组件，参考信号从第一信号处理组件获得增益以产生第一信号，并且第一信号处理组件将增益传递给预处理组件。

公开(公告)号：US20130030799A1

公开(公告)日：2013-01-31

申请号：US13557230

申请日：2012-07-25

Applicant: Meoung-Jin Lim ,  Sanghyun Chi

Inventor： Meoung-Jin Lim ,  Sanghyun Chi

IPC: G10L19/04

CPC classification number: H03G7/002 ,  H03G7/008 ,  H04R1/1091 ,  H04R3/007 ,  H04R2420/07

Abstract: An acoustic shock protection device includes a prediction gain estimator and an audio compressor. The prediction gain estimator is configured to analyze a plurality of linear prediction coefficients of an audio signal and determine a category of the audio signal. The audio compressor is coupled to the prediction gain estimator, and the audio compressor is configured to adjust a signal level of the audio signal according to the category of the audio signal.

Abstract translation: 声学防震装置包括预测增益估计器和音频压缩器。 预测增益估计器被配置为分析音频信号的多个线性预测系数并确定音频信号的类别。 音频压缩器耦合到预测增益估计器，并且音频压缩器被配置为根据音频信号的类别来调整音频信号的信号电平。